Netgear orporated 05300023 54 Mbps ADSL Modem Wireless Router User Manual fullmanual
Netgear Incorporated 54 Mbps ADSL Modem Wireless Router fullmanual
Contents
- 1. Manual Part 1
- 2. Manual Part 2
Manual Part 2
Reference Manual for the ADSL Modem Wireless Router DG834G Note: When NETBIOS is enabled (which it is in the VPNC defaults implemented by the VPN Wizard), automatic traffic will reactivate the tunnel. To prevent reactivation from happening, either disable NETBIOS or disable the policy for the tunnel (see “Using the Policy Table on the VPN Policies Page to Deactivate a VPN Tunnel” on page 7-35). Deleting a VPN Tunnel To delete a VPN tunnel: 1. Log in to the Modem Router. 2. Open the DG834G v3 management interface and click VPN Policies to display the VPN Policies screen (Figure 7-39). Select the radio button for the VPN tunnel to be deleted and click the Delete button. Figure 7-39 Virtual Private Networking 7-37 v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G How to Set Up VPN Tunnels in Special Circumstances When the VPN Wizard and its VPNC defaults (see Table 7-2) are not appropriate for your special circumstances, use one of the following alternatives: • Auto Policy—for a typical automated Internet Key Exchange (IKE) setup, see “Using Auto Policy to Configure VPN Tunnels” on page 7-38. Auto Policy uses the IKE protocol to define the authentication scheme and automatically generate the encryption keys. • Manual Policy—for a Manual Keying setup in which you must specify each phase of the connection, see “Using Manual Policy to Configure VPN Tunnels” on page 7-48. Manual Policy does not use IKE. Rather, you manually enter all the authentication and key parameters. You have more control over the process, however the process is more complex and there are more opportunities for errors or configuration mismatches between your DG834G v3 and the corresponding VPN endpoint gateway or client workstation. Using Auto Policy to Configure VPN Tunnels You need to configure matching VPN settings on both VPN endpoints. The outbound VPN settings on one end must match to the inbound VPN settings on other end, and vice versa. See “Example of Using Auto Policy” on page 7-43 for an example of using Auto Policy. Configuring VPN Network Connection Parameters All VPN tunnels on the ADSL Modem Wireless Router require configuring several network parameters. This section describes those parameters and how to access them. The most common configuration scenarios will use IKE to manage the authentication and encryption keys. The IKE protocol performs negotiations between the two VPN endpoints to automatically generate and update the required encryption parameters. Click the VPN Policies link of the main menu, and then click the Add Auto Policy button to display the VPN - Auto Policy menu shown in Figure 7-40. 7-38 Virtual Private Networking v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G Figure 7-40 Virtual Private Networking 7-39 v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G The DG834G v3 VPN tunnel network connection fields are defined as follows: General. These settings identify this policy and determine its major characteristics. • Policy Name—Enter a unique name to identify this policy. This name is not supplied to the remote VPN endpoint. It is used only to help you manage the policies. • Remote VPN Endpoint—If the remote endpoint has a dynamic IP address, select Dynamic IP address. No "Address Data" input is required. You can set up multiple remote dynamic IP policies, but only one such policy can be enabled at a time. Otherwise, select the desired option (IP address or Domain Name) and enter the address of the remote VPN endpoint to which you wish to connect. Note: The remote VPN endpoint must have this VPN Gateway's address entered as its "Remote VPN Endpoint". • NETBIOS Enable—check this if you wish NETBIOS traffic to be forwarded over the VPN tunnel. The NETBIOS protocol is used by Microsoft Networking. • IKE Keep-alive—Enable this if you wish to ensure that a connection is kept open, or, if that is not possible, that it is quickly re-established when disconnected. The Ping IP Address must be associated with the remote endpoint. The remote LAN address must be used. This IP address will be "pinged" periodically to generate traffic for the VPN tunnel. The remote keep-alive IP address must be covered by the remote LAN IP range and must correspond to a device that can respond to ping. The range should be made as narrow as possible to meet this objective. Local LAN. This identifies which PCs on your LAN are covered by this policy. For each selection, data must be provided as follows: • Single address—enter an IP address in the "Single/Start IP address" field. Typically, this setting is used when you wish to make a single Server on your LAN available to remote users. • Range address—enter the starting IP address in the "Single/Start IP address" field, and the finish IP address in the "Finish IP address" field. This must be an address range used on your LAN. • Subnet address—enter an IP address in the "Single/Start IP address" field, and the desired network mask in the "Subnet Mask" field. The remote VPN endpoint must have these IP addresses entered as its "Remote" addresses. 7-40 Virtual Private Networking v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G Remote LAN. This identifies which PCs on the remote LAN are covered by this policy. For each selection, data must be provided as follows: • Single PC - no Subnet—select this option if there is no LAN (only a single PC) at the remote endpoint. If this option is selected, no additional data is required. The typical application is a PC running the VPN client at the remote end. • Single address—Enter an IP address in the "Single/Start IP address" field. This must be an address on the remote LAN. Typically, this setting is used when you wish to access a server on the remote LAN. • Range address—enter the starting IP address in the "Single/Start IP address" field, and the finish IP address in the "Finish IP address" field. This must be an address range used on the remote LAN. • Subnet address—enter an IP address in the "Single/Start IP address" field, and the desired network mask in the "Subnet Mask" field. The remote VPN endpoint must have these IP addresses entered as its "Local" addresses. IKE. Direction/Type—this setting is used when determining if the IKE policy matches the current traffic. Select the desired option. • Responder only—incoming connections are allowed, but outgoing connections will be blocked. • Initiator and Responder—both incoming and outgoing connections are allowed. Exchange Mode—ensure the remote VPN endpoint is set to use "Main Mode". Diffie-Hellman (DH) Group—the Diffie-Hellman algorithm is used when exchanging keys. The DH Group setting determines the number of bit size used in the exchange. This value must match the value used on the remote VPN Gateway. Local Identity Type—select the desired option to match the "Remote Identity Type" setting on the remote VPN endpoint. • WAN IP Address—your Internet IP address. • Fully Qualified Domain Name—your domain name. • Fully Qualified User Name—your name, E-mail address, or other ID. Local Identity Data—enter the data for the selection above. (If WAN IP Address is selected, no input is required.) Virtual Private Networking 7-41 v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G Remote Identity Type—select the desired option to match the "Local Identity Type" setting on the remote VPN endpoint. • IP Address—the Internet IP address of the remote VPN endpoint. • Fully Qualified Domain Name—the Domain name of the remote VPN endpoint. • Fully Qualified User Name—the name, E-mail address, or other ID of the remote VPN endpoint. Remote Identity Data—enter the data for the selection above. (If IP Address is selected, no input is required.) Parameters. Encryption Algorithm—encryption Algorithm used for both IKE and IPSec. This setting must match the setting used on the remote VPN Gateway. DES and 3DES are supported. • DES—the Data Encryption Standard (DES) processes input data that is 64 bits wide, encrypting these values using a 56 bit key. Faster but less secure than 3DES. • 3DES—(Triple DES) achieves a higher level of security by encrypting the data three times using DES with three different, unrelated keys. Authentication Algorithm—authentication Algorithm used for both IKE and IPSec. This setting must match the setting used on the remote VPN Gateway. Auto, MD5, and SHA-1 are supported. Auto negotiates with the remote VPN endpoint and is not available in responder-only mode. • • MD5—128 bits, faster but less secure. SHA-1 (default)—160 bits, slower but more secure. Pre-shared Key—the key must be entered both here and on the remote VPN Gateway. SA Life Time—this determines the time interval before the SA (Security Association) expires. (It will automatically be re-established as required.) While using a short time period (or data amount) increases security, it also degrades performance. It is common to use periods over an hour (3600 seconds) for the SA Life Time. This setting applies to both IKE and IPSec SAs. IPSec PFS (Perfect Forward Secrecy)—if enabled, security is enhanced by ensuring that the key is changed at regular intervals. Also, even if one key is broken, subsequent keys are no easier to break. (Each key has no relationship to the previous key.) This setting applies to both IKE and IPSec SAs. When configuring the remote endpoint to match this setting, you may have to specify the "Key Group" used. For this device, the "Key Group" is the same as the "DH Group" setting in the IKE section. 7-42 Virtual Private Networking v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G Example of Using Auto Policy VPN Tunnel 14.15.16.17 DG834G VPN Firewall 22.23.24.25 DG834G VPN Firewall 192.168.3.1 192.168.0.1 PCs PCs Figure 7-41 1. Set the LAN IPs on each DG834G v3 to different subnets and configure each properly for the Internet. The following settings are assumed for this example: Table 7-5. VPN Tunnel Configuration Worksheet Connection Name: GtoG Pre-Shared Key: 12345678 Secure Association -- Main Mode or Manual Keys: Main Perfect Forward Secrecy -- Enabled or Disabled: Disabled NETBIOS -- Enabled or Disabled: Enabled Encryption Protocol -- DES or 3DES: 3DES Authentication Protocol -- MD5 or SHA-1: SHA-1 Diffie-Hellman (DH) Group -- Group 1 or Group 2: Group 2 Key Life in seconds: 28800 (8 IKE Life Time in seconds: 3600 (1 hours) hour) Local IPSec ID LAN IP Address Subnet Mask FQDN or Gateway IP (WAN IP Address) DG834G v3 A LAN_A 192.168.0.1 255.255.255.0 14.15.16.17 DG834G v3 B LAN_B 192.168.3.1 255.255.255.0 22.23.24.25 VPN Endpoint Virtual Private Networking 7-43 v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G 2. Open the DG834G v3 on LAN A management interface and click on VPN Policies. Figure 7-42 3. Click Add Auto Policy. 4. Enter policy settings (see Figure 7-43). • General — Policy Name = GtoG — Remote VPN Endpoint Address Type = Fixed IP Address — Remote VPN Endpoint Address Data = 22.23.24.25 • Local LAN – use default setting • Remote LAN — IP Address = select Subnet address from the pulldown menu. — Start IP address = 192.168.3.1 — Subnet Mask = 255.255.255.0 • IKE — Direction = Initiator and Responder — Exchange Mode = Main Mode — Diffie-Hellman (DH) Group = Group 2 (1024 Bit) — Local Identity Type = use default setting — Remote Identity Type = use default setting • Parameters — Encryption Algorithm = 3DES 7-44 Virtual Private Networking v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G — Authentication Algorithm = MD5 — Pre-shared Key = 12345678 Figure 7-43 Virtual Private Networking 7-45 v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G 5. Click Apply. The Get VPN Policies web page is displayed. Figure 7-44 6. Repeat for the DG834G v3 on LAN B and pay special attention to use the following network settings as appropriate. • General, Remote Address Data (e.g., 14.15.16.17) • Remote LAN, Start IP Address — IP Address (e.g, 192.168.0.1) — Subnet Mask (e.g., 255.255.255.0) — Preshared Key (e.g., 12345678) 7. Use the VPN Status screen to activate the VPN tunnel by performing the following steps: Note: The VPN Status screen is only one of three ways to active a VPN tunnel. See “Activating a VPN Tunnel” on page 7-29 for information on the other ways. 7-46 Virtual Private Networking v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G a. Open the DG834G v3 management interface and click on VPN Status to display the VPN Status/Log screen (Figure 7-45). Figure 7-45 b. Click VPN Status (Figure 7-45) to display the Current VPN Tunnels (SAs) screen (Figure 7-46). Click on Connect for the VPN tunnel you want to activate. Figure 7-46 c. Review the VPN Status/Log screen (Figure 7-45) to verify that the tunnel is connected. Virtual Private Networking 7-47 v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G Using Manual Policy to Configure VPN Tunnels As an alternative to IKE, you may use Manual Keying, in which you must specify each phase of the connection. A "Manual" VPN policy requires all settings for the VPN tunnel to be manually input at each end (both VPN endpoints). Click the VPN Policies link of the main menu, and then click the Add Manual Policy radio button to display the Manual Keys menu shown in Figure 7-47. Figure 7-47 7-48 Virtual Private Networking v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G General. The DG834G v3 VPN tunnel network connection fields are defined as follows: • Policy Name—enter a unique name to identify this policy. This name is not supplied to the remote VPN endpoint. It is used only to help you manage the policies. • Remote VPN Endpoint—select the desired option (IP address or Fully Qualified Domain Name) and enter the address of the remote VPN endpoint to which you wish to connect. Note: The remote VPN endpoint must have this VPN Gateway's address entered as its "Remote VPN Endpoint". • NETBIOS Enable—check this if you wish NETBIOS traffic to be forwarded over the VPN tunnel. The NETBIOS protocol is used by Microsoft Networking. Local LAN. This identifies which PCs on your LAN are covered by this policy. For each selection, data must be provided as follows: • Single address—enter an IP address in the "Single/Start IP address" field. Typically, this setting is used when you wish to make a single Server on your LAN available to remote users. • Range address—enter the starting IP address in the "Single/Start IP address" field, and the finish IP address in the "Finish IP address" field. This must be an address range used on your LAN. • Subnet address—enter an IP address in the "Single/Start IP address" field, and the desired network mask in the "Subnet Mask" field. The remote VPN endpoint must have these IP addresses entered as its "Remote" addresses. Remote LAN. This identifies which PCs on the remote LAN are covered by this policy. For each selection, data must be provided as follows: • Single PC - no Subnet—select this option if there is no LAN (only a single PC) at the remote endpoint. If this option is selected, no additional data is required. • Single address—enter an IP address in the "Single/Start IP address" field. This must be an address on the remote LAN. Typically, this setting is used when you wish to access a server on the remote LAN. • Range address—enter the starting IP address in the "Single/Start IP address" field, and the finish IP address in the "Finish IP address" field. This must be an address range used on the remote LAN. Virtual Private Networking 7-49 v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G • Subnet address—enter an IP address in the "Single/Start IP address" field, and the desired network mask in the "Subnet Mask" field. The remote VPN endpoint must have these IP addresses entered as its "Local" addresses. ESP Configuration. ESP (Encapsulating Security Payload) provides security for the payload (data) sent through the VPN tunnel. SPI—enter the required security policy indexes (SPIs). Each policy must have unique SPIs. These settings must match the remote VPN endpoint. The "in" setting here must match the "out" setting on the remote VPN endpoint, and the "out" setting here must match the "in" setting on the remote VPN endpoint. Encryption—select the desired Encryption Algorithm, and enter the key in the field provided. For 3DES, the keys should be 24 ASCII characters and for DES, the keys should be 8 ASCII characters. • DES—the Data Encryption Standard (DES) processes input data that is 64 bits wide, encrypting these values using a 56 bit key. Faster but less secure than 3DES. • 3DES—(Triple DES) achieves a higher level of security by encrypting the data three times using DES with three different, unrelated keys. Authentication—select the desired SHA-1 or MD5 Authentication Algorithm, and enter the key in the field provided. For MD5, the keys should be 16 ASCII characters. For SHA-1, the keys should be 20 ASCII characters. • • MD5—128 bits, faster but less secure. SHA-1 (default)—160 bits, slower but more secure. 7-50 Virtual Private Networking v1.0, January 2006 Chapter 8 Troubleshooting This chapter gives information about troubleshooting your 54 Mbps ADSL Modem Wireless Router Model DG834G. After each problem description, instructions are provided to help you diagnose and solve the problem. For the common problems listed, go to the section indicated. • Is the router on? • Have I connected the router correctly? Go to “Basic Functioning” on page 8-1. • I can’t access the router’s configuration with my browser. Go to “Troubleshooting the Web Configuration Interface” on page 8-3. • I’ve configured the router but I can’t access the Internet. Go to “Troubleshooting the ISP Connection” on page 8-4. • I can’t remember the router’s configuration password. Go to “Restoring the Default Configuration and Password” on page 8-9. • I want to clear the configuration and start over again. Go to “Restoring the Default Configuration and Password” on page 8-9. Basic Functioning After you turn on power to the router, the following sequence of events should occur: 1. When power is first applied, verify that the Power LED is on (see “The Router’s Front Panel” on page 2-8 for an illustration and explanation of the LEDs). 2. Verify that the Test LED lights within a few seconds, indicating that the self-test procedure is running. 3. After approximately 10 seconds, verify that: a. The Test LED is not lit. b. The LAN port LEDs are lit for any local ports that are connected. Troubleshooting 8-1 v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G c. The WAN port LED is lit. If a port’s LED is lit, a link has been established to the connected device. If a LAN port is connected to a 100 Mbps device, verify that the port’s LED is green. If the port is 10 Mbps, the LED will be amber. If any of these conditions does not occur, refer to the appropriate following section. Power LED Not On If the Power and other LEDs are off when your router is turned on: • Make sure that the power cord is properly connected to your router and that the power supply adapter is properly connected to a functioning power outlet. • Check that you are using the 12 V DC power adapter supplied by NETGEAR for this product. If the error persists, you have a hardware problem and should contact technical support. Test LED Never Turns On or Test LED Stays On When the router is turned on, the Test LED turns on for about 10 seconds and then turns off. If the Test LED does not turn on, or if it stays on, there is a fault within the router. If you experience problems with the Test LED: • Cycle the power to see if the router recovers and the LED blinks for the correct amount of time. If all LEDs including the Test LED are still on one minute after power up: • Cycle the power to see if the router recovers. • Clear the router’s configuration to factory defaults. This will set the router’s IP address to 192.168.0.1. This procedure is explained in “Using the Reset button” on page 8-9. If the error persists, you might have a hardware problem and should contact technical support. LAN or Internet Port LEDs Not On If either the LAN LEDs or Internet LED do not light when the Ethernet connection is made, check the following: 8-2 Troubleshooting v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G • Make sure that the Ethernet cable connections are secure at the router and at the hub or workstation. • Make sure that power is turned on to the connected hub or workstation. • Be sure you are using the correct cable: — When connecting the router’s WAN ADSL port, use the cable that was supplied with the DG834G v3. Troubleshooting the Web Configuration Interface If you are unable to access the router’s Web Configuration interface from a computer on your local network, check the following: • If you are using an Ethernet-connected computer, check the Ethernet connection between the computer and the router as described in the previous section. • Make sure your computer’s IP address is on the same subnet as the router. If you are using the recommended addressing scheme, your computer’s address should be in the range of 192.168.0.2 to 192.168.0.254. Refer to “Preparing a Computer for Network Access” in Appendix C to find your computer’s IP address. Note: If your computer’s IP address is shown as 169.254.x.x: Recent versions of Windows and MacOS will generate and assign an IP address if the computer cannot reach a DHCP server. These auto-generated addresses are in the range of 169.254.x.x. If your IP address is in this range, check the connection from the computer to the router and reboot your computer. • If your router’s IP address was changed and you do not know the current IP address, clear the router’s configuration to factory defaults. This will set the router’s IP address to 192.168.0.1. This procedure is explained in “Using the Reset button” on page 8-9. • Make sure your browser has Java, JavaScript, or ActiveX enabled. If you are using Internet Explorer, click Refresh to be sure the Java applet is loaded. • Try quitting the browser and launching it again. • Make sure you are using the correct login information. The factory default login name is admin and the password is password. Make sure that CAPS LOCK is off when entering this information. Troubleshooting 8-3 v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G If the router does not save changes you have made in the Web Configuration Interface, check the following: • When entering configuration settings, be sure to click the Apply button before moving to another menu or tab, or your changes are lost. • Click the Refresh or Reload button in the Web browser. The changes may have occurred, but the Web browser may be caching the old configuration. Troubleshooting the ISP Connection If your router is unable to access the Internet, you should check the ADSL connection, then the WAN TCP/IP connection. ADSL link If your router is unable to access the Internet, you should first determine whether you have an ADSL link with the service provider. The state of this connection is indicated with the Internet LED. Internet LED Green or Blinking Green If your Internet LED is green or blinking green, then you have a good ADSL connection. You can be confident that the service provider has connected your line correctly and that your wiring is correct. Internet LED Blinking Amber If your Internet LED is blinking amber, then your modem router is attempting to make an ADSL connection with the service provider. The LED should turn green within several minutes. If the Internet LED does not turn green, disconnect all telephones on the line. If this solves the problem, reconnect the telephones one at a time, being careful to use a microfilter on each telephone. If the microfilters are connected correctly, you should be able to connect all your telephones. If disconnecting telephones does not result in a green Internet LED, there may be a problem with your wiring. If the telephone company has tested the ADSL signal at your Network Interface Device (NID), then you may have poor quality wiring in your house. 8-4 Troubleshooting v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G Internet LED Off If the Internet LED is off, disconnect all telephones on the line. If this solves the problem, reconnect the telephones one at a time, being careful to use a microfilter on each telephone. If the microfilters are connected correctly, you should be able to connect all your telephones. If disconnecting telephones does not result in a green Internet LED the problem may be one of the following: • Check that the telephone company has made the connection to your line and tested it. • Verify that you are connected to the correct telephone line. If you have more than one phone line, be sure that you are connected to the line with the ADSL service. It may be necessary to use a swapper if you ADSL signal is on pins 1 and 4 or the RJ-11 jack. The ADSL Modem Wireless Router uses pins 2 and 3. Obtaining a WAN IP Address If your modem router is unable to access the internet, and your Internet LED is green or blinking green, you should determine whether the modem router is able to obtain a WAN IP address from the ISP. Unless you have been assigned a static IP address, your modem router must request an IP address from the ISP. You can determine whether the request was successful using the browser interface. To check the WAN IP address from the browser interface: 1. Launch your browser and select an external site such as www.netgear.com. 2. Access the Main Menu of the modem router’s configuration at http://192.168.0.1. 3. Under the Maintenance heading check that an IP address is shown for the WAN Port. If 0.0.0.0 is shown, your modem router has not obtained an IP address from your ISP. If your router is unable to obtain an IP address from the ISP, the problem may be one of the following: • Your ISP may require a Multiplexing Method or Virtual Path Identifier/Virtual Channel Identifier parameter. Verify with your ISP the Multiplexing Method and parameter value, and update the router’s ADSL Settings accordingly. • Your ISP may require a login program. Ask your ISP whether they require PPP over Ethernet (PPPoE) or PPP over ATM (PPPOA) login. Troubleshooting 8-5 v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G • If you have selected a login program, you may have incorrectly set the Service Name, User Name and Password. See “Troubleshooting PPPoE or PPPoA”, below. • Your ISP may check for your computer's host name. Assign the computer Host Name of your ISP account to the modem router in the browserbased Setup Wizard. • Your ISP only allows one Ethernet MAC address to connect to Internet, and may check for your computer’s MAC address. In this case: Inform your ISP that you have bought a new network device, and ask them to use the router’s MAC address. OR Configure your router to spoof your computer’s MAC address. This can be done in the Basic Settings menu. Refer to the ADSL Modem Wirelesss Router Setup Manual (see Table 2-2 on page 2-10). Troubleshooting PPPoE or PPPoA The PPPoA or PPPoA connection can be debugged as follows: 1. Access the Main Menu of the router at http://192.168.0.1. 2. Under the Maintenance heading, select the Router Status link. 3. Click the Connection Status button. 4. If all of the steps indicate “OK” then your PPPoE or PPPoA connection is up and working. 5. If any of the steps indicates “Failed”, you can attempt to reconnect by clicking Connect. The modem router will continue to attempt to connect indefinitely. If you cannot connect after several minutes, you may be using an incorrect Service Name, User Name or Password. There also may be a provisioning problem with your ISP. Note: Unless you connect manually, the modem router will not authenticate using PPPoE or PPPoA until data is transmitted to the network. 8-6 Troubleshooting v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G Troubleshooting Internet Browsing If your modem router can obtain an IP address but your computer is unable to load any Web pages from the Internet: • Your computer may not recognize any DNS server addresses. A DNS server is a host on the Internet that translates Internet names (such as www addresses) to numeric IP addresses. Typically your ISP will provide the addresses of one or two DNS servers for your use. If you entered a DNS address during the modem router’s configuration, reboot your computer and verify the DNS address as described in “Preparing a Computer for Network Access” in Appendix C. Alternatively, you can configure your computer manually with DNS addresses, as explained in your operating system documentation. • Your computer may not have the modem router configured as its TCP/IP modem router. If your computer obtains its information from the modem router by DHCP, reboot the computer and verify the modem router address as described in “Preparing a Computer for Network Access” in Appendix C. Troubleshooting a TCP/IP Network Using the Ping Utility Most TCP/IP terminal devices and routers contain a ping utility that sends an echo request packet to the designated device. The device then responds with an echo reply. Troubleshooting a TCP/IP network is made very easy by using the ping utility in your computer. Testing the LAN Path to Your Router You can ping the router from your computer to verify that the LAN path to your router is set up correctly. To ping the router from a PC running Windows 95 or later: 1. From the Windows toolbar, click the Start button and select Run. 2. In the field provided, type Ping followed by the IP address of the router, as in this example: ping 192.168.0.1 3. Click OK. You should see a message like this one: Pingingwith 32 bytes of data Troubleshooting 8-7 v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G If the path is working, you see this message: Reply from < IP address >: bytes=32 time=NN ms TTL=xxx If the path is not working, you see this message: Request timed out If the path is not functioning correctly, you could have one of the following problems: • Wrong physical connections — Make sure the LAN port LED is on. If the LED is off, follow the instructions in “LAN or Internet Port LEDs Not On” on page 8-2. — Check that the corresponding Link LEDs are on for your network interface card and for the hub ports (if any) that are connected to your workstation and router. • Wrong network configuration — Verify that the Ethernet card driver software and TCP/IP software are both installed and configured on your PC or workstation. — Verify that the IP address for your router and your workstation are correct and that the addresses are on the same subnet. Testing the Path from Your Computer to a Remote Device After verifying that the LAN path works correctly, test the path from your PC to a remote device. From the Windows run menu, type: PING -n 10 where is the IP address of a remote device such as your ISP’s DNS server. If the path is functioning correctly, replies as in the previous section are displayed. If you do not receive replies: — Check that your PC has the IP address of your router listed as the default modem router. If the IP configuration of your PC is assigned by DHCP, this information will not be visible in your PC’s Network Control Panel. Verify that the IP address of the router is listed as the default modem router as described in “Preparing a Computer for Network Access” in Appendix C. — Check to see that the network address of your PC (the portion of the IP address specified by the netmask) is different from the network address of the remote device. — Check that your cable or DSL modem is connected and functioning. 8-8 Troubleshooting v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G — If your ISP assigned a host name to your PC, enter that host name as the Account Name in the Basic Settings menu. — Your ISP could be rejecting the Ethernet MAC addresses of all but one of your PCs. Many broadband ISPs restrict access by only allowing traffic from the MAC address of your broadband modem, but some ISPs additionally restrict access to the MAC address of a single PC connected to that modem. If this is the case, you must configure your router to “clone” or “spoof” the MAC address from the authorized PC. Refer to your ADSL Modem Wirelesss Router Setup Manual (see Table 2-2 on page 2-10). Restoring the Default Configuration and Password This section explains how to restore the factory default configuration settings, changing the router’s administration password to password and the IP address to 192.168.0.1. You can erase the current configuration and restore factory defaults in two ways: • Use the Erase function of the Web Configuration Manager (see “Backing Up, Restoring, or Erasing Your Settings” on page 5-1). • Use the Default Reset button on the rear panel of the router. Use this method for cases when the administration password or IP address is not known. Using the Reset button To restore the factory default configuration settings without knowing the administration password or IP address, you must use the Default Reset button on the rear panel of the router. 1. Press and hold the Default Reset button until the Test LED turns on (about 10 seconds). 2. Release the Default Reset button and wait for the router to reboot. Problems with Date and Time The E-mail menu in the Content Filtering section displays the current date and time of day. The ADSL Modem Wireless Router uses the Network Time Protocol (NTP) to obtain the current time from one of several Network Time Servers on the Internet. Each entry in the log is stamped with the date and time of day. Problems with the date and time function can include: Troubleshooting 8-9 v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G • Date shown is January 1, 2000 Cause: The router has not yet successfully reached a Network Time Server. Check that your Internet access settings are configured correctly. If you have just completed configuring the router, wait at least five minutes and check the date and time again. • Time is off by one hour Cause: The router does not automatically sense Daylight Savings Time. In the E-mail menu, check or uncheck the box marked “Adjust for Daylight Savings Time”. 8-10 Troubleshooting v1.0, January 2006 Appendix A Technical Specifications This appendix provides technical specifications for the 54 Mbps ADSL Modem Wireless Router Model DG834G. Network Protocol and Standards Compatibility Data and Routing Protocols: TCP/IP, RIP-1, RIP-2, DHCP, PPPoE or PPPoA, RFC 1483 Bridged or Routed Ethernet, and RFC 1577 Classical IP over ATM Power Adapter North America: 120V, 60 Hz, input United Kingdom, Australia: 240V, 50 Hz, input Europe: 230V, 50 Hz, input Japan: 100V, 50/60 Hz, input All regions (output): 12 V AC @ 1.0A output Physical Specifications Dimensions: 6.9" x 4.7" x 1.1" 175 mm x 119 mm x 28 mm Weight: 0.7 lbs. 0.3 kg Environmental Specifications Operating temperature: 0° to 40° C (32º to 104º F) Operating humidity: 90% maximum relative humidity, noncondensing Electromagnetic Emissions Meets requirements of: FCC Part 15 Class B; VCCI Class B; EN 55 022 (CISPR 22), Class B Interface Specifications LAN: 10BASE-T or 100BASE-Tx, RJ-45 WAN: ADSL, ADSL2+, Dual RJ-11, pins 2 and 3,T1.413, G.DMT, G.Lite, ITU Annex A (for the DG834G) or ITU Annex B (for the DG834GB) Technical Specifications A-1 v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G A-2 Technical Specifications v1.0, January 2006 Appendix B NETGEAR VPN Configuration DG834G v3 to FVL328 This appendix is a case study on how to configure a secure IPSec VPN tunnel from a NETGEAR DG834G v3 to a FVL328. This case study follows the VPN Consortium interoperability profile guidelines (found at http://www.vpnc.org/InteropProfiles/Interop-01.html). Configuration Profile The configuration in this document follows the addressing and configuration mechanics defined by the VPN Consortium. Gather all the necessary information before you begin the configuration process. Verify whether the firmware is up to date, all of the addresses that will be necessary, and all of the parameters that need to be set on both sides. Check that there are no firewall restrictions. Table B-1. Profile Summary VPN Consortium Scenario: Scenario 1 Type of VPN LAN-to-LAN or Gateway-to-Gateway (not PC/Client-to-Gateway) Security Scheme: IKE with Preshared Secret/Key (not Certificate-based) IP Addressing: NETGEAR-Gateway A Static IP address NETGEAR-Gateway B Static IP address NETGEAR VPN Configuration B-1 v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G 10.5.6.0/24 Gateway A LAN IP 10.5.6.1 172.23.9.0/24 VPNC Example Network Interface Addressing 14.15.16.17 22.23.24.25 WAN IP WAN IP Gateway B LAN IP 172.23.9.1 FVL328 DG834G Figure B-1 Note: Product updates are available on the NETGEAR, Inc. web site at http://kbserver.netgear.com/DG834G v3.asp. Step-By-Step Configuration 1. Configure the DG834G v3 as in the Gateway-to-Gateway procedures using the VPN Wizard (see “How to Set Up a Gateway-to-Gateway VPN Configuration” on page 7-21), being certain to use appropriate network addresses for the environment. The LAN Addresses used in this example are as follows: Unit WAN IP LAN IP LAN Subnet Mask DG834G 14.15.16.17 10.5.6.1 255.255.255.0 FVL328 22.13.24.25 172.23.9.1 255.255.255.0 a. In Step 1, enter toFVL328 for the Connection Name. b. In Step 2, enter 22.23.24.25 for the remote WAN's IP address. c. In Step 3, enter the following: • IP Address = 172.23.9.1 • Subnet Mask = 255.255.255.0 B-2 NETGEAR VPN Configuration v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G Click VPN Policies under Advanced - VPN to invoke this screen toFVL328 10.5.6.1 172.23.9.1 toFVL328 22.23.24.25 10 172 23 Figure B-2 NETGEAR VPN Configuration B-3 v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G 2. Configure the FVL328 as in the Gateway-to-Gateway procedures for the VPN Wizard (see “How to Set Up a Gateway-to-Gateway VPN Configuration” on page 7-21), being certain to use appropriate network addresses for the environment. a. In Step 1, enter toDG834 for the Connection Name b. In Step 2, enter 14.15.16.17 for the remote WAN's IP address c. In Step 3, enter the following: • IP Address = 10.5.6.1 • Subnet Mask = 255.255.255.0 B-4 NETGEAR VPN Configuration v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G toDG834 toDG834 22.23.24.25 14.15.16.17 Click IKE Policies under VPN to invoke this screen 22.23.24.25 14.15.16.17 toDG834 172.23.9.1 10.5.6.1 Click VPN Policies under VPN to invoke this screen toDG834 toDG834 14.15.16.17 172 23 10 Figure B-3 NETGEAR VPN Configuration B-5 v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G 3. Test the VPN tunnel by pinging the remote network from a PC attached to the DG834G v3. a. Open the command prompt (Start -> Run -> cmd) b. ping 172.23.9.1 Figure B-4 Note: The pings may fail the first time. If this happens, try the pings a second time. DG834G v3 with FQDN to FVL328 This appendix is a case study on how to configure a VPN tunnel from a NETGEAR DG834G v3 to a FVL328 using a Fully Qualified Domain Name (FQDN) to resolve the public address of one or both routers. This case study follows the VPN Consortium interoperability profile guidelines (found at http://www.vpnc.org/InteropProfiles/Interop-01.html). Configuration Profile The configuration in this document follows the addressing and configuration mechanics defined by the VPN Consortium. Gather all the necessary information before you begin the configuration process. Verify whether the firmware is up to date, all of the addresses that will be necessary, and all of the parameters that need to be set on both sides. Check that there are no firewall restrictions. B-6 NETGEAR VPN Configuration v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G Table B-2. Profile Summary VPN Consortium Scenario: Scenario 1 Type of VPN LAN-to-LAN or Gateway-to-Gateway (not PC/Client-to-Gateway) Security Scheme: IKE with Preshared Secret/Key (not Certificate-based) IP Addressing: NETGEAR-Gateway A Fully Qualified Domain Name (FQDN) NETGEAR-Gateway B FDQN 10.5.6.0/24 Gateway A WAN IP LAN IP 10.5.6.1 172.23.9.0/24 VPNC Example Network Interface Addressing WAN IP dg834g.dyndns.org (FQDN) DG834G Gateway B fvl328.dyndns.org (FQDN) LAN IP 172.23.9.1 FVL328 Figure B-5 Note: Product updates are available on the NETGEAR, Inc. web site at http://kbserver.netgear.com/DG834G v3.asp. NETGEAR VPN Configuration B-7 v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G The Use of a Fully Qualified Domain Name (FQDN) Many ISPs (Internet Service Providers) provide connectivity to their customers using dynamic instead of static IP addressing. This means that a user’s IP address does not remain constant over time which presents a challenge for gateways attempting to establish VPN connectivity. A Dynamic DNS (DDNS) service allows a user whose public IP address is dynamically assigned to be located by a host or domain name. It provides a central public database where information (such as email addresses, host names and IP addresses) can be stored and retrieved. Now, a gateway can be configured to use a 3rd party service in lieu of a permanent and unchanging IP address to establish bi-directional VPN connectivity. To use DDNS, you must register with a DDNS service provider. Example DDNS Service Providers include: • • • DynDNS: www.dyndns.org TZO.com: netgear.tzo.com ngDDNS: ngddns.iego.net In this example, Gateway A is configured using an example FQDN provided by a DDNS Service provider. In this case we established the hostname dg834g.dyndns.org for gateway A using the DynDNS service. Gateway B will use the DDNS Service Provider when establishing a VPN tunnel. In order to establish VPN connectivity Gateway A must be configured to use Dynamic DNS, and Gateway B must be configured to use a DNS hostname to find Gateway A provided by a DDNS Service Provider. Again, the following step-by-step procedures assume that you have already registered with a DDNS Service Provider and have the configuration information necessary to set up the gateways. Step-By-Step Configuration 1. Log in to the DG834G v3 labeled Gateway A as in the illustration. Out of the box, the DG834G v3 is set for its default LAN address of http://192.168.0.1 with its default user name of admin and default password of password. For this example we will assume you have set the local LAN address as 10.5.6.1 for Gateway A and have set your own password. 2. Click on the Dynamic DNS link on the left side of the Settings management GUI. This will take you to the Dynamic DNS Menu. B-8 NETGEAR VPN Configuration v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G 3. On the DG834G v3, configure the Dynamic DNS settings. a. Browse to the Dynamic DNS Setup Screen (see Figure B-6) in the Advanced menu. Figure B-6 b. Configure this screen with appropriate account and hostname settings and then click Apply. • Check the box Use a Dynamic DNS Service. • Host Name = dg834g.dyndns.org • User Name = • Password = c. Click Show Status. The resulting screen should show Update OK: good (see Figure B-7). Figure B-7 NETGEAR VPN Configuration B-9 v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G 4. On the FVL328, configure the Dynamic DNS settings. Assume a properly configured DynDNS account. a. Browse to the Dynamic DNS Setup Screen (see Figure B-8) in the Advanced menu. Figure B-8 b. Select the DynDNS.org radio button (see Figure B-8), configure with appropriate account and hostname settings (see Figure B-9), and then click Apply. • Host and Domain Name = fvl328.dyndns.org • User Name = • Password = B-10 NETGEAR VPN Configuration v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G Figure B-9 c. Click Show Status. The resulting screen should show Update OK: good (see Figure B-10). Figure B-10 NETGEAR VPN Configuration B-11 v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G 5. Configure the DG834G v3 as in the Gateway-to-Gateway procedures using the VPN Wizard (see “How to Set Up a Gateway-to-Gateway VPN Configuration” on page 7-21), being certain to use appropriate network addresses for the environment. The LAN Addresses used in this example are as follows: Device LAN IP Address LAN Subnet Mask DG834G v3 10.5.6.1 255.255.255.0 FVL328 172.23.6.1 255.255.255.0 a. In Step 1, enter toFVL328 for the Connection Name. b. In Step 2, enter fvl328.dyndns.org for the remote WAN's IP address. c. In Step 3, enter the following: • IP Address = 172.23.9.1 • Subnet Mask = 255.255.255.0 6. Configure the FVL328 as in the Gateway-to-Gateway procedures for the VPN Wizard (see “How to Set Up a Gateway-to-Gateway VPN Configuration” on page 7-21), being certain to use appropriate network addresses for the environment. a. In Step 1, enter toDG834 for the Connection Name. b. In Step 2, enter dg834g.dyndns.org for the remote WAN's IP address. c. In Step 3, enter the following: • IP Address = 10.5.6.1 • Subnet Mask = 255.255.255.0 7. Test the VPN tunnel by pinging the remote network from a PC attached to the DG834G v3. a. Open the command prompt (Start -> Run -> cmd) b. ping 172.23.9.1 B-12 NETGEAR VPN Configuration v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G Figure B-11 Note: The pings may fail the first time. If this happens, try the pings a second time. NETGEAR VPN Configuration B-13 v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G Configuration Summary (Telecommuter Example) The configuration in this document follows the addressing and configuration mechanics defined by the VPN Consortium. Gather all the necessary information before you begin the configuration process. Verify whether the firmware is up to date, all of the addresses that will be necessary, and all of the parameters that need to be set on both sides. Assure that there are no firewall restrictions. Table B-3. Configuration summary (telecommuter example) VPN Consortium Scenario: Scenario 1 Type of VPN: PC/client-to-gateway, with client behind NAT router Security Scheme: IKE with Preshared Secret/Key (not Certificate-based) IP Addressing: Gateway Fully Qualified Domain Name (FQDN) Client Dynamic 192.168.0.1/24 Telecommuter Example Client B Gateway A LAN IP WAN IP WAN IP 192.168.0.1 FQDN ntgr.dyndns.org "fromDG834G.com" 0.0.0.0 NAT Router B 192.168.2.3 "toDG834G.com" Router (at employer's main office) Router (at telecommuter's home office) PC (running NETGEAR ProSafe VPN Client) Figure B-12 Setting Up the Client-to-Gateway VPN Configuration (Telecommuter Example) Setting up a VPN between a remote PC running the NETGEAR ProSafe VPN Client and a network gateway involves the following two steps: • Step 1: Configuring the Client-to-Gateway VPN Tunnel on the VPN Router at the Employer’s Main Office. B-14 NETGEAR VPN Configuration v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G • Step 2: Configuring the NETGEAR ProSafe VPN Client on the Remote PC at the Telecommuter’s Home Office configures the NETGEAR ProSafe VPN Client endpoint. Step 1: Configuring the Client-to-Gateway VPN Tunnel on the VPN Router at the Employer’s Main Office Follow this procedure to configure a client-to-gateway VPN tunnel by filling out the VPN Auto Policy screen. 1. Log in to the VPN router at its LAN address of http://192.168.0.1 with its default user name of admin and password of password. Click the VPN Policies link in the main menu to display the VPN Policies screen. Click Add Auto Policy to proceed and enter the information. NETGEAR VPN Configuration B-15 v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G fromDG834G (in the example) Dynamic IP address IKE Keep Alive is optional; must match Remote LAN IP Address when enabled (remote PC must respond to pings) Subnet address 192.168.0.1 (in this example) 255.255.255.0 Single address 192.168.2.3 (in this example) (Remote NAT router must have Address Reservation set and VPN Passthrough enabled) Main Mode Fully Qualified Domain Name fromDG834G.com (in this example) Fully Qualified Domain Name toDG834G.com (in this example) 3DES 12345678 (in this example) 3600 Figure B-13 B-16 NETGEAR VPN Configuration v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G 2. Click Apply when done to get the VPN Policies screen. Figure B-14 To view or modify the tunnel settings, select the radio button next to the tunnel entry and click Edit. NETGEAR VPN Configuration B-17 v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G Step 2: Configuring the NETGEAR ProSafe VPN Client on the Remote PC at the Telecommuter’s Home Office This procedure describes how to configure the 54 Mbps ADSL Modem Wireless Router Model DG834G. We will assume the PC running the client has a dynamically assigned IP address. The PC must have a VPN client program installed that supports IPSec (in this case study, the NETGEAR VPN ProSafe Client is used). Go to the NETGEAR website (http://www.netgear.com) and select VPN01L_VPN05L in the Product Quick Find drop-down menu for information on how to purchase the NETGEAR ProSafe VPN Client. Note: Before installing the 54 Mbps ADSL Modem Wireless Router Model DG834G software, be sure to turn off any virus protection or firewall software you may be running on your PC. 1. Install the NETGEA ProSafe VPN Client on the remote PC and reboot. a. You may need to insert your Windows CD to complete the installation. b. If you do not have a modem or dial-up adapter installed in your PC, you may see the warning message stating “The NETGEAR ProSafe VPN Component requires at least one dial-up adapter be installed.” You can disregard this message. c. Install the IPSec Component. You may have the option to install either the VPN Adapter or the IPSec Component or both. The VPN Adapter is not necessary. d. The system should show the ProSafe icon ( ) in the system tray after rebooting. e. Double-click the system tray icon to open the Security Policy Editor. 2. Add a new connection. a. Run the NETGEAR ProSafe Security Policy Editor program and create a VPN Connection. B-18 NETGEAR VPN Configuration v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G b. From the Edit menu of the Security Policy Editor, click Add, then Connection. A New Connection listing appears in the list of policies. Rename the New Connection so that it matches the Connection Name you entered in the VPN Settings of the DG834G v3 on Gateway A. Note: In this example, the Connection Name used on the client side of the VPN tunnel is toDG834G and it does not have to match the VPN_client Connection Name used on the gateway side of the VPN tunnel (see Figure B-16) because Connection Names are arbitrary to how the VPN tunnel functions. Tip: Choose Connection Names that make sense to the people using and administrating the VPN. Figure B-15 NETGEAR VPN Configuration B-19 v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G Figure B-16 c. Select Secure in the Connection Security check-box group. d. Select IP Subnet in the ID Type menu. e. In this example, type 192.168.0.1 in the Subnet field as the network address of the DG834G v3. f. Enter 255.255.255.0 in the Mask field as the LAN Subnet Mask of the DG834G v3. g. Select All in the Protocol menu to allow all traffic through the VPN tunnel. h. Select the Connect using Secure Gateway Tunnel check box. i. Select Domain Name in the ID Type menu below the check box and enter fromDG834G.com (in this example). j. Select Gateway Hostname and enter ntgr.dyndns.org (in this example). k. The resulting Connection Settings are shown in Figure B-16. 3. Configure the Security Policy in the 54 Mbps ADSL Modem Wireless Router Model DG834G software. a. In the Network Security Policy list, expand the new connection by double clicking its name or clicking on the “+” symbol. My Identity and Security Policy subheadings appear below the connection name. B-20 NETGEAR VPN Configuration v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G b. Click on the Security Policy subheading to show the Security Policy menu. Figure B-17 c. Select the Main Mode in the Select Phase 1 Negotiation Mode check box. 4. Configure the VPN Client Identity. In this step, you will provide information about the remote VPN client PC. You will need to provide the Pre-Shared Key that you configured in the DG834G v3 and either a fixed IP address or a “fixed virtual” IP address of the VPN client PC. NETGEAR VPN Configuration B-21 v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G a. In the Network Security Policy list on the left side of the Security Policy Editor window, click My Identity. Figure B-18 b. Choose None in the Select Certificate menu. c. Select Domain Name in the ID Type menu and enter toDG834G.com (in this example) in the box below it. Choose Disabled in the Virtual Adapter menu. d. In the Internet Interface box, select Intel PRO/100VE Network Connection (in this example, your Ethernet adapter may be different) in the Name menu and enter 192.168.2.3 (in this example) in the IP Addr box. B-22 NETGEAR VPN Configuration v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G e. Click the Pre-Shared Key button. Figure B-19 f. In the Pre-Shared Key dialog box, click the Enter Key button. Enter the DG834G v3's Pre-Shared Key and click OK. In this example, 12345678 is entered. This field is case sensitive. 5. Configure the VPN Client Authentication Proposal. In this step, you will provide the type of encryption (DES or 3DES) to be used for this connection. This selection must match your selection in the VPN router configuration. a. In the Network Security Policy list on the left side of the Security Policy Editor window, expand the Security Policy heading by double clicking its name or clicking on the “+” symbol. b. Expand the Authentication subheading by double clicking its name or clicking on the “+” symbol. Then select Proposal 1 below Authentication. NETGEAR VPN Configuration B-23 v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G Figure B-20 c. In the Authentication Method menu, select Pre-Shared key. d. In the Encrypt Alg menu, select the type of encryption. In this example, use Triple DES. e. In the Hash Alg menu, select SHA-1. f. In the SA Life menu, select Unspecified. g. In the Key Group menu, select Diffie-Hellman Group 2. 6. Configure the VPN Client Key Exchange Proposal. In this step, you will provide the type of encryption (DES or 3DES) to be used for this connection. This selection must match your selection in the VPN router configuration. B-24 NETGEAR VPN Configuration v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G a. Expand the Key Exchange subheading by double clicking its name or clicking on the “+” symbol. Then select Proposal 1 below Key Exchange. Figure B-21 b. In the SA Life menu, select Unspecified. c. In the Compression menu, select None. d. Check the Encapsulation Protocol (ESP) checkbox. e. In the Encrypt Alg menu, select the type of encryption. In this example, use Triple DES. f. In the Hash Alg menu, select SHA-1. g. In the Encapsulation menu, select Tunnel. h. Leave the Authentication Protocol (AH) checkbox unchecked. 7. Save the VPN Client settings. From the File menu at the top of the Security Policy Editor window, select Save. After you have configured and saved the VPN client information, your PC will automatically open the VPN connection when you attempt to access any IP addresses in the range of the remote VPN router’s LAN. 8. Check the VPN Connection. NETGEAR VPN Configuration B-25 v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G To check the VPN Connection, you can initiate a request from the remote PC to the VPN router’s network by using the Connect option in the ADSL Modem Wireless Router menu bar (see Figure B-22). Since the remote PC has a dynamically assigned WAN IP address, it must initiate the request. a. Right-click the system tray icon to open the popup menu. b. Select Connect to open the My Connections list. c. Choose toDG834G. The 54 Mbps ADSL Modem Wireless Router Model DG834G will report the results of the attempt to connect. Once the connection is established, you can access resources of the network connected to the VPN router. Right-mouse-click on the system tray icon to open the popup menu. Figure B-22 To perform a ping test using our example, start from the remote PC: a. Establish an Internet connection from the PC. b. On the Windows taskbar, click the Start button, and then click Run. B-26 NETGEAR VPN Configuration v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G c. Type ping -t 192.168.0.1, and then click OK. Figure B-23 This will cause a continuous ping to be sent to the VPN router. After between several seconds and two minutes, the ping response should change from timed out to reply. Figure B-24 Once the connection is established, you can open the browser of the PC and enter the LAN IP address of the VPN router. After a short wait, you should see the login screen of the VPN router (unless another PC already has the VPN router management interface open). Note: You can use the VPN router diagnostic utilities to test the VPN connection from the VPN router to the client PC. Run ping tests from the Diagnostics link of the VPN router main menu. NETGEAR VPN Configuration B-27 v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G Monitoring the VPN Tunnel (Telecommuter Example) Viewing the PC Client’s Connection Monitor and Log Viewer To view information on the progress and status of the VPN client connection, open the 54 Mbps ADSL Modem Wireless Router Model DG834G Log Viewer. 1. To launch this function, click on the Windows Start button, then select Programs, then 54 Mbps ADSL Modem Wireless Router Model DG834G, then Log Viewer. Note: Use the active VPN tunnel information and pings to determine whether a failed connection is due to the VPN tunnel or some reason outside the VPN tunnel. 2. The Connection Monitor screen is shown below: Figure B-25 B-28 NETGEAR VPN Configuration v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G While the connection is being established, the Connection Name field in this menu will show SA before the name of the connection. When the connection is successful, the SA will change to the yellow key symbol. Note: While your PC is connected to a remote LAN through a VPN, you might not have normal Internet access. If this is the case, you will need to close the VPN connection in order to have normal Internet access. Viewing the VPN Router’s VPN Status and Log Information To view information on the status of the VPN client connection, open the VPN router’s VPN Status screen by following the steps below: 1. To view this screen, click the Router Status link of the VPN router’s main menu, then click the VPN Status button. The VPN Status/Log screen for a connection is shown below: Figure B-26 NETGEAR VPN Configuration B-29 v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G 2. To view the VPN tunnels status, click the VPN Status link on the right side of the main menu. Figure B-27 B-30 NETGEAR VPN Configuration v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G NETGEAR VPN Configuration B-31 v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G B-32 NETGEAR VPN Configuration v1.0, January 2006 Appendix C Related Documents This appendix provides links to reference documents you can use to gain a more complete understanding of the technologies used in your NETGEAR product. Document Link Internet Networking and TCP/IP Addressing http://documentation.netgear.com/reference/enu/tcpip/index.htm Wireless Communications http://documentation.netgear.com/reference/enu/wireless/index.htm Preparing a Computer for Network Access http://documentation.netgear.com/reference/enu/wsdhcp/index.htm Virtual Private Networking (VPN) http://documentation.netgear.com/reference/enu/vpn/index.htm Glossary http://documentation.netgear.com/reference/enu/glossary/index.htm Related Documents C-1 v1.0, January 2006 Reference Manual for the ADSL Modem Wireless Router DG834G C-2 Related Documents v1.0, January 2006
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